Screw



FIG. 1 is a perspective view of a first embodiment of a screw, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front side elevational view thereof;

FIG. 5 is a rear side elevational view thereof;

FIG. 6 is a left elevational view thereof; and

FIG. 7 is a right elevational view thereof.

FIG. 8 is a perspective view of a second embodiment of the screw of FIG. 1, shown in an alternative environmental structure;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a front side elevational view thereof;

FIG. 12 is a rear side elevational view thereof;

FIG. 13 is a left elevational view thereof; and,

FIG. 14 is a right elevational view thereof.

Broken lines are for illustrating unclaimed portions of the screw; the broken lines form no part of the claimed design. 

CLAIM We claim the ornamental design for a screw, as shown and described. 